The thing is... when the song was written it was back in the early 90's... the actual answer was a separate song that was going to be on Side B of the vinyl 45 the release was due for... then they stopped making vinyl records right before the single came out... it was never released.

So it stands to remain... we will never, truly, know who let the dogs out.

Oh, and if you believe this horse dookie have I got a muffler bearing for you! high performance, won't use it and will sell it super cheap! Fits almost every application, let me know what you have and I'll tell you if it will fit.